Tetronics/cyclodextrin-based hydrogels as catalyst-containing media for the hydroformylation of higher olefins

Chevry, M.; Vanbésien, T.; Menuel, S.; Monflier, Éric; Hapiot, F.

doi:10.1039/c6cy02070d

Cited by 25 publications

(16 citation statements)

References 64 publications

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“…In their other study, catalyst systems with Tetronics® macromolecules were used. When reverse‐sequential Tetronics ® 90R4 poloxamine ( 9 a ) was mixed with αCD, polypseudorotaxane aggregates with αCD domains were formed [111] . Table 13 collects selected results of the hydroformylation of dododec‐1‐ene with excellent performance in comparison with that without αCD (entries 3 and 4 vs entry 1).…”

Section: Hydroformylationmentioning

confidence: 99%

Synthetic Application of Cyclodextrins in Combination with Metal Ions, Complexes, and Metal Particles

Molnár

2020

ChemCatChem

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Cyclodextrins are green, environmentally benign products available through the enzymatic degradation of starch for a multitude of varied applications. This review attempts to collect useful information with respect to catalytic studies performed with the use of cyclodextrin and modified cyclodextrin preparations applied in combination of or loaded with varied catalytically active species including metal ions, complexes, and metal particles. Major sections are about their use in hydrogenation, reduction, oxidation, hydroformylation and coupling reactions. Additional sections include their utilization in ring formation and ring opening as well as degradation of pollutants. In the last part, examples about ester hydrolysis, hydroboration and hydrosilylation, as well as hydrogen production are treated. Data collected and analyzed indicate the importance and high potential of cyclodextrin-based catalysts in sustainable chemistry.

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Section: Hydroformylationmentioning

confidence: 99%

Synthetic Application of Cyclodextrins in Combination with Metal Ions, Complexes, and Metal Particles

Molnár

2020

ChemCatChem

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“…It is worth noting that RAME-β-CD can also act as a supramolecular carrier able to transport the olefins. In 2017, an advanced catalytic system was proposed [236]. This system used poloxamines (Tetronics ® ) instead of PEG.…”

Section: Pickering Emulsionsmentioning

confidence: 99%

Supramolecular Chemistry and Self-Organization: A Veritable Playground for Catalysis

2019

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The directed assembly of molecular building blocks into discrete supermolecules or extended supramolecular networks through noncovalent intermolecular interactions is an ongoing challenge in chemistry. This challenge may be overcome by establishing a hierarchy of intermolecular interactions that, in turn, may facilitate the edification of supramolecular assemblies. As noncovalent interactions can be used to accelerate the reaction rates and/or to increase their selectivity, the development of efficient and practical catalytic systems, using supramolecular chemistry, has been achieved during the last few decades. However, between discrete and extended supramolecular assemblies, the newly developed “colloidal tectonics” concept allows us to link the molecular and macroscopic scales through the structured engineering of colloidal structures that can be applied to the design of predictable, versatile, and switchable catalytic systems. The main cutting-edge strategies involving supramolecular chemistry and self-organization in catalysis will be discussed and compared in this review.

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“…On the other hand, the same system has been used for green chemical catalyst-containing media [121,122]. For instance, α-CD/Tetronics composition was applied for the rhodium-catalyzed hydroformylation of alkenes [123]. Moreover, gold nanoparticles that were embedded in the Tetronic/α-CD hydrogel matrix were used as catalysts for the hydrogenation of alkenes, alkynes, and aldehydes [124].…”

Section: α-Cyclodextrin/branched Polymer-based Polypseudorotaxane Hydmentioning

confidence: 99%

α-Cyclodextrin-Based Polypseudorotaxane Hydrogels

2019

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Supramolecular hydrogels that are based on inclusion complexes between α-cyclodextrin and (co)polymers have gained significant attention over the last decade. They are formed via dynamic noncovalent bonds, such as host-guest interactions and hydrogen bonds, between various building blocks. In contrast to typical chemical crosslinking (covalent linkages), supramolecular crosslinking is a type of physical interaction that is characterized by great flexibility and it can be used with ease to create a variety of "smart" hydrogels. Supramolecular hydrogels based on the self-assembly of polypseudorotaxanes formed by a polymer chain "guest" and α-cyclodextrin "host" are promising materials for a wide range of applications. α-cyclodextrin-based polypseudorotaxane hydrogels are an attractive platform for engineering novel functional materials due to their excellent biocompatibility, thixotropic nature, and reversible and stimuli-responsiveness properties. The aim of this review is to provide an overview of the current progress in the chemistry and methods of designing and creating α-cyclodextrin-based supramolecular polypseudorotaxane hydrogels. In the described systems, the guests are (co)polymer chains with various architectures or polymeric nanoparticles. The potential applications of such supramolecular hydrogels are also described.

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Tetronics/cyclodextrin-based hydrogels as catalyst-containing media for the hydroformylation of higher olefins

Abstract: International audienceno abstrac

Cited by 25 publications

References 64 publications

Synthetic Application of Cyclodextrins in Combination with Metal Ions, Complexes, and Metal Particles

Synthetic Application of Cyclodextrins in Combination with Metal Ions, Complexes, and Metal Particles

Supramolecular Chemistry and Self-Organization: A Veritable Playground for Catalysis

α-Cyclodextrin-Based Polypseudorotaxane Hydrogels

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